Can not play in Iphone 4 – Tank-O-Box Review

I loaded this game when I used Iphone 2 two years ago. It was great. But now I am using Iphone 4, when I play it, it suddenly shut down. I can not play the next stage any more. I happen again and again. Please help! I love this game so much!
Review by TiffanyTruong on Tank-O-Box.